Punch wheel in machines for composing lead type lines

ABSTRACT

A mold wheel for receiving molten lead to compose lead type lines, the wheel comprising separate discs connected to each other with the interposition of a seal or gasket. Grooves are provided in the discs and extend adjacent the holes intended to accomodate the molds for lead pouring, water flowing through said grooves and assuring an efficient cooling both for the wheel and molds and thus for the lead being poured therein.

666 555 999 999 Ill 2,035,443 3/ l 936 Albrecht 3 ,020,999 3,069,000 3 ,077,260

[ PUNCH WHEEL IN MACHINES FOR COMPOSING LEAD TYPE LINES 12/1962 Abbott et 2/1963 Rossetto et al.

[76] Inventor:

Daniele Menta, Via Friuli 38, Milan, 7 Italy [22] Filed. June 27 1972 Primary Examiner--Emest T. Wright, Jr.

Attorney-Richard P. Alberi 21 Appl. No.2 266,615

[57] ABSTRACT A mold wheel for receiving molten lead to compose 30] Foreign Application Priority Data lead type lines, the wheel comprising separate discs July 10, 1971 -268 79A/71 connected to each other with the interposition of a seal or gasket. Grooves are provided in the discs and extend adjacent the holes intended to accomodate the molds for lead pouring, water flowing through said [52] US. 199/56 1341b 11/54 199/47, 48, 54, 55,

[51] Int.

[ Field Of Search grooves and assuring an efficient cooling both for the 58 wheel and molds and thus for the lead being poured therein.

5 Claims, 5 Drawing Figures [56] References Cited UNITED STATES PATENTS 977,280 11/1910 1,075,024 10/1913 Degener...... 1 ,596,943 8/ 1926 Petersen SHEET 1 BF PATENTED DEC 41973 PUNCH WHEEL IN MACHINES FOR COMPOSING LEAD TYPE LINES This invention relates to a mold wheel in machines for composing lead type lines.

It is known that lead type lines are often mechanically provided by pouring molten lead into molds carried in shaped cavities of wheels provided with intermittent rotary motion. These mold wheels are in the form of discs having a circular periphery, at which a crown gear is formed engaged by a pinion transmitting to the wheel an intermittent feeding motion.

In order to accelerate mold and wheel cooling, it is known to apply metal bodies on the outer surface of the wheel, conduits passing through such metal bodies within which a cooling liquid, generally water, is circulated. The disadvantage in these wheels is that cooling is scarcely efficient, both because the wheel is cooled only at the surface thereof, and because said conduits, through which the cooling liquid flows, are relatively remote from the molds into which molten lead is poured and extend only for a limited portion of the mold surface.

Therefore, the main object of the present invention is to provide a mold wheel of the above character, made to ensure an efficient even cooling for the molds, into which the molten lead is poured, and at the same time for the wheel carrying such molds.

Another object of the invention is to provide a wheel having therein the required conduits or channels of liquid circulation to cool the wheel and molds, so that the outer surface of the wheel is free of projecting bodies.

These and still further objects are accomplished by a mold wheel in machines for composing lead type lines, comprising a body member having shaped through holes for accomodating the molds for molten lead pouring to compose lead lines, means being provided for rotably driving said wheel, characterized in that said body member comprises first and second discs coaxial with and firmly connected to each other with the interposition of a seal or gasket, said discs and associated seal or gasket being rotably mounted on a hub, on the surface of at least one of the discs facing the seal or gasket a groove is provided and extends for at least a portion of the periphery of said shaped holes and has two ends communicating with an inlet conduit for a cooling liquid and respectively a discharge conduit of the liquid in said hub.

For a better understanding of the wheel structure andfeatures, an embodiment thereof will now be described by way of example, reference being had to the accompanying drawing in which:

FIG. 1 is a diagrammatic and partly sectional front ple made of rubber. Shaped holes 4 are formed both in discs 1 and 2 and seal or gasket 3, these holes 4 being identical to one another and in which, when the discs I and 2 and seal or gasket 3 are firmly secured to one another to form the wheel, the molds are mounted for receiving the molten lead to form the lead type lines.

A continuous groove is provided on the surface of disc 2 and comprises two substantially radial sections 5 and 6, a section 7 extending substantially all about the disc 2 at close proximity of the radially external peripheral edge of holes 4, and a section 8 at close proximity of the radially inner side of said holes 4, as clearly shown in FIG. 4.

A crown gear 9, only outlined in FIGS. 1 and 3, is provided on the periphery of disc 1, and a tubular extension 10 projects from the disc 1 coaxially therewith. On the surface of disc I, from which said extension 10 projects, a groove is provided and comprises a section 11 extending substantially all about the disc 1 at close proximity to the radially external pcriphral edge of holes 4 and has a profile identical to that for section 7 of the groove in disc 2. The groove in disc 1 also comprises two short radial sections 12 and 13, respectively (FIG. 3), while, a 'hole 14 communicates with a cavity 15 in the inner surface of the tubular extension 10, and another hole 16 communicates with a cavity 7 (FIG. 1) also in the inner surface of the tubular extension 10 and is axially offset to the cavity 15, not communicating with the latter.

It will be seen in FIG. 5 that two pairs of small holes 18 and 19, respectively, are provided in'seal or gasket 3, and a wide aperture 34 is axially provided in said seal or gasket 3, while a similar large aperture 35 is provided in disc 2. As particularly shown in FIG. 2, the tubular extension 10 of disc 1 extends in said apertures 34, 35 of the seal or gasket 3 and disc 2. Discs 1 and 2, with the interposition of seal or gasket 3, are rigidly locked on each other by clamping screws 37, clearly shown in the drawing and passing through holes 38, 39 and respectively 40 provided in said discs 1 and 2 and seal or gasket 3.

The grooves in discs 1 and 2 and holes 18 and 19 in seal or gasket 3 are provided so that, when said discs 1 and 2 and seal or gasket 3 are locked together to form a rigid body by said screws 37, the sections 11 and 7 of the grooves in discs 1 and 2 are facing each other and kept separated by seal or gasket 3 (FIG. 2). Section 13 of the groove in disc 1 terminates at one of the two holes 18 of seal or gasket 3 and communicates through this hole 18 with section 5 of the groove in disc 2.

In turn, said groove section 5 communicates with cavity 17 of extension 10 through the hole 16 in disc 1 and one of the two holes 19 in seal or gasket 3.

The section 12 of the groove in disc 1 communicates through the second hole 18 of seal or gasket 3 with the section 6 of the groove in disc.2 and through the second hole 19 of said seal or gasket 3 with the hole 14 and cavity 15 in disc 1.

The mold wheel also comprises a fixed hub 20 having two longitudinal holes Hand 22, respectively passing therethrough.

Through a connector 23 said hole 21 communicates with a pipe 24, through which the liquid having cooled the wheel and molds carried thereby is discharged.

In turn and through a connector 25 said hole 22 communicates with a pipe 26 through which the liquid, particularly water, for wheel cooling is supplied.

Hub 20 extends within the cavity 17 of the tubular extension 10 and, as shown in FIG. 2, it will be seen that in said hub 20 two radial holes 27 and 28 are formed, connecting the longitudinal hole 21 and an annula'r groove 29 and longitudinal hole 22 with an annular groove 30, respectively, said annular grooves 29, 30

being provided on the cylindrical outer surface of the hub 20 and arranged, respectively, at the cavities 15 and 17 of said tubular extension 10.

Finally, it should be noted that sealing rings 31 are placed between the inner cylindrical surface of the extension of disc 1 and the outer cylindrical surface of hub 20, and that a cover 32 is secured by screws 41 at the free end of hub 20, between'which cover 32 and extension 10 of disc 1 seals or gaskets 33 are provided.

When the wheel is assembled, as shown in FIGS. 1 and 2, and the molds for receiving the molten lead to form the lead type lines are mounted in saidshaped holes 4, said discs 1 and 2 with the seal or gasket 3 are intermittently rotated, while cold water is supplied to pipe 26, this water flowing through the longitudinal hole 22 and radial hole 28, filling the annular groove 30 with which cavity 17 is always communicating as the discs 1, 2 rotate relative to the hub 20, passing through hole 16 and one of the seal or gasket holes 19, flowing through section 5 of the groove in disc 2, partially passing through one of the seal or gasket holes 18 and dividing into two separate flows passing through said section 5 and the opposite section 13 in the grooves. The water flowthen flows through the opposite sections 7 and 11 of the grooves in the discs 1 and 2, separated from each other by said seal or gasket 3, and after lapping on all of the outer periphery of the shaped holes 4, then flowing through section 8 of the groove in disc 2 and respectively section 12 of the groove in disc 1. The liquid flowing through section 12 of the groove in disc 1 passes through the second hole of holes 18 in the seal or gasket 3 and joins in section 6 of the groove in disc 2, then passing through the second hole of holes 19 in the seal or gasket 3, hole 14, cavity 15, annular groove 29, radial hole 27, and longitudinal hole 21 in the hub 20 and is finally discharged through pipe 24.

As it will be seen from the foregoing, by the disclosed mold wheel a highly efficient cooling can be provided both for the wheel and molds accomodated in the shaped holes 4 of said wheel. This cooling is highly efficient because of the proximity of the grooves, wherein the cooling liquid circulates at the free edges of holes 4 in which said molds are secured, and it should also be noted that the cooling thus provided is substantially uniform throughout the mold wheel surface.

Although the preferred embodiment of the mold wheel has been shown in the drawing, it is apparent that those changes which are obvious to those skilled in the art can be made thereto. Particularly, the grooves for cooling water circulation can be provided in only one of the two discs 1, 2 comprising the wheel, and it is as well apparent that where the grooves (5,6,7,8,1 1,12,13) are provided on both discs 1, 2 comprising the wheel, said grooves could be separated from one another throughout the cooling liquid path.

What I claim is: v

1. A mold wheel in machines for composing lead type.

lines, comprising a body member having shaped through holes for accommodating the molds for molten lead to compose lead lines, means being provided for rotatably driving said wheel, wherein said body member comprises first and second discscoaxial with and firmly connected to each other with the interposition ofa seal or gasket, wherein said discs and associated seal or gasket are rotatably mounted on a hub, and wherein on the surface of at least one of said first and second discs facing the seal or gasket a groove is provided and extends for at least a portion of the periphery of said shaped holes and has two ends communicating with an inlet conduit for a cooling liquid and respectively a discharge conduit of the liquid in said hub.

2. A mold wheel as claimed in claim 1, wherein said groove extends adjacent the radially outer peripheral edge and respectively the radially inner peripheral edge of said shaped holes of the disc wherein said groove is formed.

3.'A mold wheel as claimed in claim 2, wherein on the surfaces of both said first and second discs facing said seal or gasket grooves are formed and extend along at least a portion of the shaped hole periphery, and communicating with said inlet conduit and discharge conduit of the cooling liquid.

4. A mold wheel as claimed in claim 3, wherein holes are formed in said seal or gasket, through which the grooves of the first disc communicate with the grooves of the second disc.

5. A mold wheel as claimed in claim 4, wherein the groove of the second disc extends both adjacent the radially outer peripheral edge and the radially inner peripheral edge of the shaped holes of said second disc, the groove of the first disc extends only adjacent the ra dially outer peripheral edge of said first disc, and a tubular extension projecting from said first disc and being inserted in an aperture provided in theseal or gasket and an aperture provided in said second disc.

* a: It =1: 

1. A mold wheel in machines for composing lead type lines, comprising a body member having shaped through holes for accommodating the molds for molten lead to compose lead lines, means being provided for rotatably driving said wheel, wherein said body member comprises first and second discs coaxial with and firmly connected to each other with the interposition of a seal or gasket, wherein said discs and associated seal or gasket are rotatably mounted on a hub, and wherein on the surface of at least one of said first and second discs facing the seal or gasket a groove is provided and extends for at least a portion of the periphery of said shaped holes and has two ends communicating with an inlet conduit for a cooling liquid and respectively a discharge conduit of the liquid in said hub.
 2. A mold wheel as claimed in claim 1, wherein said groove extends adjacent the radially outer peripheral edge and respectively the radially inner peripheral edge of said shaped holes of the disc wherein said groove is formed.
 3. A mold wheel as claimed in claim 2, wherein on the surfaces of both said first and second discs facing said seal or gasket grooves are formed and extend along at least a portion of the shaped hole periphery, and communicating with said inlet conduit And discharge conduit of the cooling liquid.
 4. A mold wheel as claimed in claim 3, wherein holes are formed in said seal or gasket, through which the grooves of the first disc communicate with the grooves of the second disc.
 5. A mold wheel as claimed in claim 4, wherein the groove of the second disc extends both adjacent the radially outer peripheral edge and the radially inner peripheral edge of the shaped holes of said second disc, the groove of the first disc extends only adjacent the radially outer peripheral edge of said first disc, and a tubular extension projecting from said first disc and being inserted in an aperture provided in the seal or gasket and an aperture provided in said second disc. 